Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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Clarification: nothing in *series* with InnerSound amp.

Posted by Al Sekela (A) on December 16, 2004 at 09:37:59

In Reply to: Thanks Bob and Al. Here is what I will most likely do...(and Bob or others, need advice on AC caps) posted by mark maloof on December 15, 2004 at 18:31:14:

Filters typically have inductors in series with the load and capacitors across the load.

My experience with the InnerSound amp is that I can hear the bass consequences of using a dedicated AC circuit run in armored cable versus one run in heavier gauge plastic. The armored cable circuit was installed at a different time and has more cable between the outlet and the breaker box. It has more series resistance.

I expect this difference is less than the difference between having series inductors and not having them in a filter arrangement.

However, adding a parallel capacitor (hot to neutral) at the outlet helps with the InnerSound, even on a dedicated circuit. This does not restrict the current flow into the amp.

I don't want to recommend that you use a non X-rated cap for this application, but I only have experience with using 500-volt silver-mica capacitors or 600-volt Mylar capacitors. The silver-mica are superior.

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